Adsorption compressed natural gas dryer

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Compressed natural gas dryers (CNG dryers) are designed for continuous separation of water vapour from compressed natural gas thus lowering the dew point. CNG-DRY dryers are normally custom made to meet specific project requirements. Several versions are available based on operating pressure and type of regeneration. G-DRY type is manual controlled and without regeneration. After the saturation of the dryer, it is possible to replace the adsorption material or regenerate it with an external regeneration system. CNG-R-DRY has two columns that operate alternately. Adsorption takes place under pressure in the first column while the second column is heat regenerated. CNG-HP-DRY has also two columns that operate alternately. Regeneration is made by a small portion of already dried CNG at ambient pressure. Purge CNG is let to the suction side of the compressor. Characteristics of CNG dryers • operating pressure: 0,1-420 bar • operating temperature (inlet): 1,5 to 60 °C • pressure dew point: -40 °C • flow rate: on request • design code for pressure vessels: EN 13445 • fluid group: 1 Applications • CNG applications • petrochemical • gas